TITLES AND PRICES 



ABSORPTION. 



Absorption by soils. 1908. 95 pages, illus. Paper, 15c. A 26.3 : 52 



Absorption of vapors and gases by soils. 1908. 50 pages, illus. Paper, lOc. 



A 26.3 : 51 



ACID SOILS. Syllabus of illustrated lecture on acid soils. 1907. 28' pages. 

 Paper, 5c. A 10.13 : 3 2 



ADSORPTION. Selective adsorption by soils. (In Journal of Agricultural 

 Research, Dec. 1913, pages 179 to 188, illus.) Paper, 25c. A 1.23: 1 3 



AERATION. Contributions to our knowledge of aeration of soils. 1904. 52 

 pages. Paper, 5c. A 26.3 : 25 



ALABAMA. Soils of prairie regions of Alabama and Mississippi and their 

 use for alfalfa : pt. 1, Houston clay and associated soils ; pt. 2, Alfalfa 

 on Houston clay, its culture and management. 1911. 48 pages, illus. 

 Paper, lOc. A 1.8: 96 



ALBEMARLE AREA. See, in this list, heading Shenandoah River terrace. 

 ALFALFA. See, in this list, heading Alabama. 



ALKALI LANDS. 



Alkali lands. 1899. 23 pages, 1 diagram. Paper, 5c. A 1.9 : 88 



Alkali soils of United States, review of literature and summary of pres- 

 ent information. 1906. 196 pages, illus. Paper, 25c. A 26.3: 35 

 Alkali soils of Yellowstone Valley from preliminary investigation of soils 



near Billings, Mont. 1898. 39 pages, illus. Paper, 15c. A 26.3 : 14 



Reclamation of alkali land in Salt Lake Valley, Utah. 1907. 28 pages, 



illus. Paper, lOc. A 26.3 : 43 



Reclamation of alkali lands in Egypt as adapted to similar work in United 



States. 1903. 48 pages, illus. Paper, 15c. A 26.3 : 21 



Reclamation of alkali soils. 1906. 30 pages, illus. Paper, lOc. 



A 26.3 : 34 

 Reclamation of alkali soils at Billings, Mont. 1907. 21 pages, illus. 



Paper, lOc. A 26.3 : 44 



Reclamation of white-ash lands affected with alkali at Fresno, Cal. 1907. 



47 pages, illus. Paper, lOc. A 26.3 : 42 



Some mutual relations between alkali soils and vegetation. 1902. 78 



pages. Paper, 5c. A 1.8 : 71 



See also, in this list, heading Calcium sulphate. 



ALUNITE. 



Alunite and kelp as potash fertilizers. 1913. 5 pages. Paper, 5c. 



A 26.4 : 76 

 Alunite as source of potash. 1912. 4 pages, 1 illus. Paper, 5c. 



A 26.4 : 70 



ANALYSIS. 



Centrifugal method of mechanical soil analysis. 1904. 38 pages, illus. 



Paper, lOc. A 26.3 : 24 



Colorimetric, turbidity, and titration methods used in soil investigations. 



1906. 60 pages, illus. Paper, lOo. A 26.3 : 31 



Examination of soil samples. 1911. 7 pages. Paper, 5c. A 26.4 : 20 



NOTE. In ordering publications from this List use the words of the title as far as the 

 first period, and all the composite number which follows the price. 

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